Dynamics and role of nonadiabatic effects on nonlinear optical response of conjugated polymers

被引：0
|
作者：
Saxena, A [1 ]
Kress, JD
Martin, RL
Wang, WZ
Shuai, Z
Bishop, AR
机构：
[1] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA
[2] Univ Mons, Serv Chim Mat Nouveaux, B-7000 Mons, Belgium
来源：
SYNTHETIC METALS | 1999年 / 101卷 / 1-3期
关键词：
models of non-linear phenomena;
D O I：
10.1016/S0379-6779(98)01399-X
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We investigated the effect of breather states on static polarizability (alpha) and hyperpolarizability (gamma) of finite polyenes (C24H26, C40H42) using molecular dynamics simulations. With all C-C bond and angle degrees of freedom included, we found significant enhancement in the presence of breathers. Using exact diagonalization technique we found that for specific values of materials parameters (electron-phonon coupling, etc.) quantum lattice fluctuations and disorder can also enhance optical nonlinearity.
引用
收藏
页码：257 / 258
页数：2
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